EP 0041614 A1 19811216 - Barium sulphate powder coated with organic material.
Title (en)
Barium sulphate powder coated with organic material.
Title (de)
Mit organischem Material beschichtetes Bariumsulfat-Pulver.
Title (fr)
Sulfate de baryum en poudre revêtu de matière organique.
Publication
Application
Priority
DE 3018966 A 19800517
Abstract (en)
1. A BaSO4 powder modified with organic polymers, characterized in that the surface of the BaSO4 material is homogeneously coated with a water-soluble copolymer of see diagramm : EP0041614,P6,F1 and, optionally, see diagramm : EP0041614,P6,F2 wherein the symbols R1 independently of one another denote hydrogen or methyl, R**2 denotes alkyl or cycloalkyl with 1 to 10 C atoms or hydroxyalkyl with 2 to 4 C atoms, R**3 denotes alkyl with 1 to 5 C atoms, sulphonate, acetate, acetamide, nitrile, carboxamide or phenyl and X denotes Na, K or Ba, the acid number of the copolymer being 60 to 350, preferably 120 to 260, the molecular weight being 1,000 to 100,000, preferably 5,000 to 30,000 and the quantity of the covering polymer layer being 0.1 to 5 % weight, preferably 0.5 to 2 % by weight, based on the coated material.
Abstract (de)
Die Erfindung betrifft ein mit organischen Polymeren modifiziertes BaSO4-Pulver, wobei die Oberfläche des feinpulvrigen BaSO4-Materials in homogener Weise mit einem bestimmten Polymeren in homogener Weise belegt ist. Die Menge an polymerer Deckschicht beträgt 0,1 bis 5 Gew.-%, bezogen auf das fertigbeschichtete Pulver.
IPC 1-7
IPC 8 full level
A61K 6/06 (2006.01); A61K 6/083 (2006.01); A61L 24/00 (2006.01); C01F 11/46 (2006.01); C08K 9/10 (2006.01); C09C 1/00 (2006.01); C09C 1/02 (2006.01); C09C 3/10 (2006.01)
CPC (source: EP)
A61K 6/887 (2020.01); A61L 24/0089 (2013.01); C08K 9/10 (2013.01); C09C 1/027 (2013.01); C09C 3/10 (2013.01)
Citation (search report)
- [X] DE 1592903 A1 19710211 - LAPORTE TITANIUM LTD
- [X] US 4124562 A 19781107 - YUI HIROSHI, et al
- [A] GB 1278413 A 19720621 - DENTAL FILLINGS LTD [GB]
- [A] CHEMICAL ABSTRACTS, Band 85, Nr. 14, 4. Oktober 1976, Seite 321, Nr. 99135n, Columbus, Ohio, U.S.A., G.P. PEARSON et al.: "Effect of barium sulfate on strength of bone cement"; & LANCET 1976, 2 (7978), 207
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0041614 A1 19811216; EP 0041614 B1 19831228; DE 3018966 A1 19811210; DE 3161763 D1 19840202; JP S577827 A 19820116
DOCDB simple family (application)
EP 81103431 A 19810506; DE 3018966 A 19800517; DE 3161763 T 19810506; JP 7152881 A 19810514